See the basic of the Two steps and the whirlwind kick 擺 扣旋風 (03)
The important is the right tension / force (04)
more about the forces (05)
the feet where your weight center is, must not turn (07)
HeJingHan BaguaQuan, Baguazhang Teaching Taipei.
See more videos at Youtube playlists
some materials could be added from HeJingHan book:
Bagua Quan Foundation Training